1.5 Combustion Fan Assembly
Step 1 If ducted air is fitted, slacken jubilee clip
and remove the flexible hose from the fan.
Step 2 Remove fan screws and unplug from
burner box.
Step 3 The combustion fan can now be detached.
Step 4 Remove the fan orifice plate spigot and
spinning.
Step 5 Inspect the impeller and remove any dust
with a soft brush.
Step 6 Remove any dust from fan scroll and
from around the motor.
Step 7 Ensure the impeller rotates freely.
Step 8 Refit components.
1.6 Radiant Tube Servicing
Step 1 Brush any dust from the exterior of the
tubes.
Step 2 Inspect the fan and burner tubes visually.
If the tubes appear clean, skip to servicing the
reflector.
Step 3 If required the interior of the tubes can
then be cleaned using an industrial vacuum
cleaner or by using long poles and a scraper.
Step 7 Refit components.
1.7 Reflector Servicing
Step 1 The condition of the reflectors should be
noted. If necessary the reflectors can be cleaned
with a mild detergent. This can significantly
improve the efficiency of the appliance.
1.8 Sweeping of Flue
The flue needs to be swept at the time of service
or in accordance to the regulations of the coun-
try that the appliance is installed.
1.9 Recommissioning After Service
After servicing of the heater has been under-
taken, it will be necessary to re-commission the
heater as detailed in Section 11 of these instruc-
tions.
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